No-tie Lacing System: Turn any pair of lace-up tennis shoes into slip on sneakers. Lock Laces are the original no tie shoelaces with over 8 million pairs sold worldwide. Stretch Fit Comfort: Our elastic laces conform to your foot for a custom fit. Added compression reduces pressure points to make your feet feel better throughout the day so you can perform your best. Perfect for Everyone: Lock Laces are a great gift for seniors suffering from arthritis or other disabilities, autistic children, runners looking to speed their triathlon transition up, or casual users. Simple Installation: One size fits all, quick to install, easy to use. Each pair is suitable for lacing up 1 pair of shoes. Easy installation instructions and videos provided.